Hi.
can you please advise me on how I can get my route from my location to
a specific address via a dropdown list with several options.
How can I replace the "start" with geolocation and still use the "end"
dropdown list to find my routes.
I find my position on the map automatically via geolocation, but can`t
figure how i can get the "end" dropdownlist to work propperly.
Thanks
Joakim
<!DOCTYPE html>
<html>
<head>
<title>Google Maps JavaScript API v3 Example: Map Geolocation</
title>
<meta name="viewport" content="initial-scale=1.0, user-
scalable=no">
<meta charset="UTF-8">
<link href="http://code.google.com/apis/maps/documentation/javascript/
examples/default.css" rel="stylesheet" type="text/css" />
<!--
Include the maps javascript with sensor=true because this code is
using a
sensor (a GPS locator) to determine the user's location.
See:
http://code.google.com/apis/maps/documentation/javascript/basics.html#SpecifyingSensor
-->
<script type="text/javascript"
src="http://maps.googleapis.com/maps/api/js?
sensor=true&language=nb_NO"></script>
<!--<script type="text/javascript" src="http://maps.googleapis.com/
maps/api/js?sensor=true&language=nb_NO">
--> <script type="text/javascript">
var map;
var directionDisplay;
var directionsService;
var stepDisplay;
var markerArray = [];
var initialLocation;
//var oslo = new google.maps.LatLng(59.947639, 10.884469);
var browserSupportFlag = new Boolean();
function initialize() {
directionsService = new google.maps.DirectionsService();
// Create a map and center it on Manhattan.
var oslo = new google.maps.LatLng(59.947639, 10.884469);
var myOptions = {
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: oslo
}
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
// Create a renderer for directions and bind it to the map.
var rendererOptions = {
map: map
}
directionsDisplay = new
google.maps.DirectionsRenderer(rendererOptions)
// Instantiate an info window to hold step text.
stepDisplay = new google.maps.InfoWindow();
}
function calcRoute() {
// First, remove any existing markers from the map.
for (i = 0; i < markerArray.length; i++) {
markerArray[i].setMap(null);
}
// Now, clear the array itself.
markerArray = [];
// Retrieve the start and end locations and create
// a DirectionsRequest using DRIVING directions.
var start = document.getElementById("start").value;
var end = document.getElementById("end").value;
var request = {
origin: start,
destination: end,
travelMode: google.maps.DirectionsTravelMode.DRIVING
};
// Route the directions and pass the response to a
// function to create markers for each step.
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
var warnings = document.getElementById("warnings_panel");
warnings.innerHTML = "<b>" + response.routes[0].warnings +
"</b>";
directionsDisplay.setDirections(response);
showSteps(response);
}
});
}
function showSteps(directionResult) {
// For each step, place a marker, and add the text to the marker's
// info window. Also attach the marker to an array so we
// can keep track of it and remove it when calculating new
// routes.
var myRoute = directionResult.routes[0].legs[0];
for (var i = 0; i < myRoute.steps.length; i++) {
var marker = new google.maps.Marker({
position: myRoute.steps[i].start_point,
map: map
});
attachInstructionText(marker, myRoute.steps[i].instructions);
markerArray[i] = marker;
}
}
function attachInstructionText(marker, text) {
google.maps.event.addListener(marker, 'click', function() {
// Open an info window when the marker is clicked on,
// containing the text of the step.
stepDisplay.setContent(text);
stepDisplay.open(map, marker);
});
}
// Try HTML5 geolocation
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position)
{
var pos = new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
var infowindow = new google.maps.InfoWindow({
map: map,
position: pos,
content: 'Du er her.'
});
map.setCenter(pos);
}, function() {
handleNoGeolocation(true);
});
} else {
// Browser doesn't support Geolocation
handleNoGeolocation(false);
}
function handleNoGeolocation(errorFlag) {
if (errorFlag) {
var content = 'Error: The Geolocation service failed.';
} else {
var content = 'Error: Your browser doesn\'t support
geolocation.';
}
var options = {
map: map,
position: new google.maps.LatLng(60, 105),
content: content
};
var infowindow = new google.maps.InfoWindow(options);
map.setCenter(options.position);
}
function detectBrowser() {
var useragent = navigator.userAgent;
var mapdiv = document.getElementById("map_canvas");
if (useragent.indexOf('iPhone') != -1 ||
useragent.indexOf('Android') != -1 ) {
mapdiv.style.width = '100%';
mapdiv.style.height = '100%';
} else {
mapdiv.style.width = '600px';
mapdiv.style.height = '800px';
}
}
google.maps.event.addDomListener(window, 'load',
initialize);
</script>
</head>
<body onload="initialize()">
<div style="text-align:center">
<select id="start">
<option value="Nedre Storgate 16, 3015 Drammen">Netteam</option>
<option value="grand central station, new york, ny">Grand Central
Station</option>
<option value="625 8th Avenue, New York, NY, 10018">Port Authority
Bus Terminal</option>
<option value="staten island ferry terminal, new york, ny">Staten
Island Ferry Terminal</option>
<option value="101 E 125th Street, New York, NY">Harlem - 125th St
Station</option>
</select>
<select id="end" onchange="calcRoute();">
<option value="Brubakkveien 14 1083 Oslo">Sigvartsen proffavdeling</
option>
<option value="W 49th St & 5th Ave, New York, NY 10020">Rockefeller
Center</option>
<option value="moma, New York, NY">MOMA</option>
<option value="350 5th Ave, New York, NY, 10118">Empire State
Building</option>
<option value="253 West 125th Street, New York, NY">Apollo Theater</
option>
<option value="1 Wall St, New York, NY">Wall St</option>
</select>
</div>
<div id="map_canvas"></div>
<div id="warnings_panel"></div>
</body>
</html>
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